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Comparison of exhumed delta in sedimentary rocks on Mars (left) with a modern delta on Earth (right).
07.16.2013

A Martian Coastal Delta Environment?

Comparison of exhumed delta in sedimentary rocks on Mars (left) with a modern delta on Earth (right). On the left, a shaded relief map shows elevated, branching, lobate features in Aeolis Dorsa, Mars, interpreted as resistant channel deposits that make up an ancient delta. These layered, cross-cutting features are typical of channelized sedimentary deposits on Earth and here are indicative of a coastal delta environment.

Image Credit: DiBiase et al./Journal of Geophysical Research/2013 and USGS/NASA Landsat

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